JAVA: Oscillation {Week 4}

I just wanted to make a quick post about Week 4 before I post my Project.... Week 4 was really awesome! Chapter 3 starts off with trigonometry (?).  I don't have much to say about that, except that I need/want to brush up on my math skills so I can use these concepts efficiently.   But, even with my lowly Pre-Cal skills (and our amazing textbook), I was able to create some really cool things!!!

Here's a sneak peek at something I am using in my project. 

(Click the picture to see the action)